reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR reloads to RELOAD_FOR_X_ADDRESS...
* reload.c (find_reloads): In code to promote RELOAD_FOR_X_ADDR_ADDR
reloads to RELOAD_FOR_X_ADDRESS reloads, test for reload sharing.
Properly keep track of first RELOAD_FOR_X_ADDRESS also for
more than 3 such reloads.
If there is not more than one RELOAD_FOR_X_ADDRESS, don't change
RELOAD_FOR_X_ADDR_ADDR reload.